/// <summary>
/// Grabs the combatants that fit the specified criteria
/// </summary>
/// <param name="rHunter">Transform who is searching for the combatants</param>
/// <param name="rSeekOrigin">Combat origin of the hunter</param>
/// <param name="rFilter">Filters we'll use to limit which combatants are returned</param>
/// <param name="rCombatantHits">List of CombatantHit values who are the combatants</param>
/// <param name="rIgnore">Transform that we won't consider a target (typically the character)</param>
/// <returns>Count of combatants returned</returns>
public static int QueryCombatTargets(Transform rSeeker, Vector3 rSeekOrigin, CombatFilter rFilter, List <CombatTarget> rCombatTargets, Transform rIgnore)
{
if (rSeeker == null)
{
return(0);
}
if (rCombatTargets == null)
{
return(0);
}
#if OOTII_PROFILE
com.ootii.Utilities.Profiler.Start(rSeeker.name + ".QueryCombatTargets");
#endif
Collider[] lHitColliders;
rCombatTargets.Clear();
int lHitCount = RaycastExt.SafeOverlapSphere(rSeekOrigin, rFilter.MaxDistance, out lHitColliders, rFilter.Layers, rIgnore);
for (int i = 0; i < lHitCount; i++)
{
GameObject lGameObject = lHitColliders[i].gameObject;
// Don't count the ignore
if (lGameObject.transform == rSeeker)
{
continue;
}
if (lGameObject.transform == rIgnore)
{
continue;
}
// Determine if the combatant has the appropriate tag
if (rFilter.Tag != null && rFilter.Tag.Length > 0)
{
if (!lGameObject.CompareTag(rFilter.Tag))
{
continue;
}
}
// We only care about combatants we'll enage with
ICombatant lCombatant = null;
Transform lHitTransform = lHitColliders[i].transform;
while (lHitTransform != null)
{
lCombatant = lGameObject.GetComponent <ICombatant>();
if (lCombatant != null)
{
break;
}
lHitTransform = lHitTransform.parent;
}
if (rFilter.RequireCombatant && lCombatant == null)
{
continue;
}
// Determine if the combatant is within range
Vector3 lClosestPoint = Vector3.zero;
ActorController lActorController = lGameObject.GetComponent <ActorController>();
if (lActorController != null)
{
lClosestPoint = lActorController.ClosestPoint(rSeekOrigin);
}
else
{
lClosestPoint = GeometryExt.ClosestPoint(rSeekOrigin, lHitColliders[i]);
}
// If we have an invalid point, stop
if (lClosestPoint == Vector3Ext.Null)
{
continue;
}
// Determine if the point is in range
bool lIsValid = true;
Vector3 lToClosestPoint = lClosestPoint - rSeekOrigin;
float lDistance = lToClosestPoint.magnitude;
if (rFilter.MinDistance > 0f && lDistance < rFilter.MinDistance)
{
lIsValid = false;
}
if (rFilter.MaxDistance > 0f && lDistance > rFilter.MaxDistance)
{
lIsValid = false;
}
// Ensure we're not ontop of the combatant. In that case, it's probably the ground
Vector3 lDirection = lToClosestPoint.normalized;
if (lDirection == -rSeeker.up)
{
lIsValid = false;
}
// Check if we're within the field of view
float lHAngle = Vector3Ext.HorizontalAngleTo(rSeeker.forward, lDirection, rSeeker.up);
if (rFilter.HorizontalFOA > 0f && Mathf.Abs(lHAngle) > rFilter.HorizontalFOA * 0.5f)
{
lIsValid = false;
}
float lVAngle = Vector3Ext.HorizontalAngleTo(rSeeker.forward, lDirection, rSeeker.right);
if (rFilter.VerticalFOA > 0f && Mathf.Abs(lVAngle) > rFilter.VerticalFOA * 0.5f)
{
lIsValid = false;
}
// This is an odd test, but we have to do it. If the closest point of a sphere is out of the FOA, it may
// be that the top of the sphere is in the FOA. So, we'll grab the top of the sphere and test it.
if (!lIsValid && lCombatant != null && lHitColliders[i] is SphereCollider)
{
lIsValid = true;
SphereCollider lSphereCollider = lHitColliders[i] as SphereCollider;
lClosestPoint = lCombatant.Transform.position + (lCombatant.Transform.rotation * (lSphereCollider.center + (Vector3.up * lSphereCollider.radius)));
lToClosestPoint = lClosestPoint - rSeekOrigin;
lDistance = lToClosestPoint.magnitude;
if (rFilter.MinDistance > 0f && lDistance < rFilter.MinDistance)
{
lIsValid = false;
}
if (rFilter.MaxDistance > 0f && lDistance > rFilter.MaxDistance)
{
lIsValid = false;
}
// Ensure we're not ontop of the combatant. In that case, it's probably the ground
lDirection = lToClosestPoint.normalized;
if (lDirection == -rSeeker.up)
{
lIsValid = false;
}
// Check if we're within the field of view
lHAngle = Vector3Ext.HorizontalAngleTo(rSeeker.forward, lDirection, rSeeker.up);
if (rFilter.HorizontalFOA > 0f && Mathf.Abs(lHAngle) > rFilter.HorizontalFOA * 0.5f)
{
lIsValid = false;
}
lVAngle = Vector3Ext.HorizontalAngleTo(rSeeker.forward, lDirection, rSeeker.right);
if (rFilter.VerticalFOA > 0f && Mathf.Abs(lVAngle) > rFilter.VerticalFOA * 0.5f)
{
lIsValid = false;
}
}
if (mShowDebug)
{
GraphicsManager.DrawPoint(rSeekOrigin, Color.white, null, 2f);
GraphicsManager.DrawPoint(lClosestPoint, Color.red, null, 2f);
}
if (lIsValid)
{
// Add the combatant to our list
CombatTarget lTargetInfo = new CombatTarget();
lTargetInfo.SeekOrigin = rSeekOrigin;
lTargetInfo.Collider = lHitColliders[i];
lTargetInfo.Combatant = lCombatant;
lTargetInfo.ClosestPoint = lClosestPoint;
lTargetInfo.Distance = lDistance;
lTargetInfo.Direction = lDirection;
lTargetInfo.HorizontalAngle = lHAngle;
lTargetInfo.VerticalAngle = lVAngle;
rCombatTargets.Add(lTargetInfo);
}
}
// Sort the combatants by distance
if (rCombatTargets.Count > 1)
{
rCombatTargets.Sort((rLeft, rRight) => rLeft.Distance.CompareTo(rRight.Distance));
// We also want to remove duplicates
for (int i = 0; i < rCombatTargets.Count; i++)
{
Transform lTarget = rCombatTargets[i].Collider.transform;
if (rCombatTargets[i].Combatant != null)
{
lTarget = rCombatTargets[i].Combatant.Transform;
}
// Check if there's a duplicate and remove it
for (int j = rCombatTargets.Count - 1; j > i && j > 0; j--)
{
Transform lNextTarget = rCombatTargets[j].Collider.transform;
if (rCombatTargets[j].Combatant != null)
{
lNextTarget = rCombatTargets[j].Combatant.Transform;
}
if (lNextTarget == lTarget)
{
rCombatTargets.RemoveAt(j);
}
}
}
}
#if OOTII_PROFILE
float lTime = Utilities.Profiler.Stop(rSeeker.name + ".QueryCombatTargets");
//Utilities.Debug.Log.FileWrite(rSeeker.name + ".QueryCombatTargets time:" + lTime.ToString("f5") + "ms");
#endif
// Finally, return the count
return(rCombatTargets.Count);
}
